C/2025 L1 (ATLAS) Orbit by S. Nakano NK 5556 (2026) Observed in 1st half of 2026
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2026 Jan. 12.73828 1.6796753 1.0014130 341.25432 208.10931 114.13576 0.200 2026 June 9.0 m1 = 11.5 + 5 log Delta + 10.0 log r Date/ 0h TT R.A.(1950) Decl. R.A.(2000) Decl. Delta r Daily motion Magnitude Mot./PA Elong. P PA/Tail Moon Age h m ¡ , h m ¡ , m , m1 , ¡ ¡ ¡ ¡ ¡ ¡ 2025 Dec. 31 15 40.66 -37 35.4 15 43.93 -37 44.9 2.315 1.688 +0.77 +17.6 15.6 20.0/ 29 40.2 22.1 262/1.72 163 .84 2026 Jan. 10 15 48.45 -34 39.6 15 51.66 -34 48.6 2.174 1.680 +0.58 +20.4 15.4 21.7/ 20 47.8 25.7 269/2.11 52 .56 20 15 54.35 -31 15.9 15 57.50 -31 24.5 2.012 1.682 +0.35 +24.6 15.3 25.0/ 11 56.5 29.2 275/2.56 69 .01 30 15 57.98 -27 10.1 16 01.03 -27 18.5 1.832 1.695 +0.07 +30.8 15.1 30.8/ 2 66.2 32.1 279/3.04 153 .89 Feb. 9 15 58.74 -22 01.8 16 01.70 -22 10.1 1.644 1.718 -0.31 +39.9 14.9 40.1/354 77.1 34.0 281/3.54 19 .55 19 15 55.81 -15 22.8 15 58.64 -15 31.4 1.458 1.751 -0.80 +52.3 14.8 53.6/347 89.2 34.4 282/3.98 108 .03 Mar. 1 15 47.98 -06 39.3 15 50.65 -06 48.3 1.291 1.792 -1.44 +67.0 14.6 70.4/342 102.7 32.6 280/4.23 107 .93 11 15 33.75 +04 31.6 15 36.24 +04 21.7 1.164 1.841 -2.25 +78.6 14.5 85.3/338 117.0 28.7 272/4.11 37 .54 21 15 11.49 +17 39.2 15 13.79 +17 28.1 1.104 1.898 -3.14 +78.2 14.5 89.1/333 129.3 24.0 255/3.61 140 .05 31 14 40.30 +30 42.6 14 42.44 +30 29.9 1.128 1.961 -3.87 +62.8 14.7 78.4/326 134.3 21.4 227/3.17 57 .95 Apr. 10 14 01.65 +41 12.5 14 03.71 +40 58.2 1.235 2.029 -4.13 +40.9 15.0 60.2/316 129.9 22.2 196/3.05 99 .52 20 13 20.28 +48 03.3 13 22.41 +47 47.6 1.405 2.102 -3.75 +22.0 15.5 42.5/305 120.6 24.3 172/2.97 98 .09 30 12 42.59 +51 44.1 12 44.88 +51 27.7 1.616 2.180 -2.96 + 9.5 15.9 28.7/292 110.3 25.7 153/2.76 63 .97 May 10 12 12.84 +53 19.1 12 15.31 +53 02.4 1.847 2.260 -2.08 + 2.3 16.4 18.8/279 100.5 26.1 139/2.48 131 .49 20 11 51.94 +53 42.4 11 54.55 +53 25.7 2.088 2.344 -1.30 - 1.3 16.8 11.8/265 91.5 25.6 127/2.18 59 .15 30 11 38.82 +53 29.1 11 41.51 +53 12.5 2.328 2.429 -0.70 - 3.0 17.2 7.0/245 83.4 24.5 118/1.89 90 .98 June 9 11 31.79 +52 58.9 11 34.52 +52 42.3 2.563 2.517 -0.24 - 3.7 17.6 4.3/211 76.0 23.0 109/1.63 128 .44 19 11 29.36 +52 22.1 11 32.11 +52 05.6 2.787 2.606 +0.10 - 3.7 17.9 3.9/166 69.3 21.4 102/1.41 43 .20 29 11 30.39 +51 44.8 11 33.13 +51 28.2 2.997 2.697 +0.36 - 3.5 18.2 4.9/135 63.3 19.7 94/1.21 113 .99 July 9 11 34.02 +51 10.0 11 36.73 +50 53.4 3.191 2.788 +0.56 - 3.0 18.5 6.1/119 58.0 18.0 87/1.05 107 .37 19 11 39.65 +50 39.6 11 42.32 +50 22.9 3.367 2.881 +0.71 - 2.5 18.7 7.3/109 53.5 16.5 79/0.91 51 .26 29 11 46.84 +50 15.0 11 49.47 +49 58.3 3.523 2.973 +0.84 - 1.8 19.0 8.3/102 50.0 15.2 70/0.81 129 1.00 Aug. 8 11 55.28 +49 57.3 11 57.86 +49 40.6 3.660 3.067 +0.94 - 1.0 19.2 9.2/ 95 47.4 14.1 60/0.72 82 .29 18 12 04.74 +49 47.4 12 07.27 +49 30.7 3.777 3.160 +1.03 - 0.1 19.4 10.0/ 90 46.1 13.3 50/0.67 69 .30 28 12 15.07 +49 46.4 12 17.54 +49 29.7 3.874 3.254 +1.10 + 0.9 19.6 10.7/ 84 46.0 12.9 40/0.63 134 1.00 Sept. 7 12 26.14 +49 55.1 12 28.54 +49 38.5 3.952 3.348 +1.17 + 2.0 19.7 11.5/ 79 47.1 12.7 30/0.61 62 .21 17 12 37.88 +50 14.8 12 40.21 +49 58.3 4.011 3.442 +1.23 + 3.2 19.9 12.2/ 74 49.4 12.8 21/0.60 88 .33 27 12 50.22 +50 46.5 12 52.48 +50 30.2 4.054 3.536 +1.28 + 4.5 20.0 12.9/ 68 52.6 13.0 12/0.61 123 1.00 Oct. 7 13 03.13 +51 31.2 13 05.30 +51 15.2 4.082 3.630 +1.34 + 5.9 20.2 13.8/ 63 56.6 13.3 5/0.62 54 .15 17 13 16.59 +52 30.3 13 18.67 +52 14.5 4.098 3.723 +1.39 + 7.5 20.3 14.6/ 58 61.3 13.6 358/0.63 103 .34 27 13 30.59 +53 44.5 13 32.56 +53 29.1 4.104 3.817 +1.44 + 9.0 20.4 15.5/ 53 66.4 13.8 352/0.64 104 .99 Nov. 6 13 45.14 +55 14.5 13 46.99 +54 59.5 4.105 3.910 +1.50 +10.7 20.5 16.5/ 48 71.8 13.9 346/0.64 63 .11 16 14 00.26 +57 00.7 14 01.96 +56 46.2 4.103 4.003 +1.55 +12.3 20.6 17.5/ 44 77.3 13.9 340/0.64 112 .36 26 14 15.97 +59 02.8 14 17.49 +58 49.0 4.102 4.095 +1.61 +13.8 20.7 18.3/ 40 82.7 13.8 335/0.64 85 .97 Dec. 6 14 32.32 +61 19.8 14 33.63 +61 06.7 4.107 4.188 +1.68 +15.1 20.8 19.1/ 36 87.8 13.6 329/0.63 80 .09 16 14 49.40 +63 50.2 14 50.43 +63 37.8 4.122 4.280 +1.75 +16.2 20.9 19.6/ 32 92.5 13.3 323/0.61 108 .38 26 15 07.27 +66 31.3 15 07.97 +66 19.9 4.149 4.371 +1.84 +17.0 21.0 19.9/ 30 96.5 12.9 317/0.59 75 .94 2027 Jan. 5 15 26.12 +69 19.9 15 26.38 +69 09.6 4.193 4.462 +1.95 +17.4 21.1 19.9/ 27 99.6 12.6 311/0.57 97 .07 15 15 46.18 +72 12.6 15 45.86 +72 03.4 4.253 4.553 +2.09 +17.4 21.2 19.5/ 25 101.5 12.2 305/0.54 93 .41 25 16 07.84 +75 05.2 16 06.73 +74 57.4 4.333 4.644 +2.29 +17.0 21.4 18.8/ 23 102.3 12.0 299/0.52 81 .91 Feb. 4 16 31.86 +77 54.1 16 29.63 +77 47.8 4.431 4.734 +2.61 +16.4 21.5 17.9/ 21 101.9 11.8 293/0.50 106 .06 14 16 59.62 +80 35.8 16 55.73 +80 31.3 4.547 4.824 +3.20 +15.3 21.6 16.8/ 20 100.4 11.6 289/0.49 76 .46 24 17 34.30 +83 06.9 17 27.74 +83 04.7 4.679 4.913 +4.54 +14.0 21.8 15.5/ 20 97.9 11.5 286/0.47 97 .88 Mar. 6 18 24.39 +85 23.5 18 13.14 +85 24.8 4.823 5.002 +8.61 +12.0 21.9 14.2/ 24 94.6 11.4 288/0.45 103 .05